October weather forecast
Florissant, MO

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Weather in October

October sees a clear transition to fall in Florissant. The city enters the phase of comfortably cool temperatures. Higher wind speeds become commonplace as the transition happens. Lovely fall weather, coupled with the splendid color show of changing leaves, makes October a charm.

Temperature

In October, the average high-temperature goes from a warm 79.5°F (26.4°C) in September to an enjoyable 65.7°F (18.7°C). An average low-temperature of 49.5°F (9.7°C) is observed during the October nights.

Humidity

October is the least humid month in Florissant, with an average relative humidity of 70%.

Rainfall

In Florissant, in October, it is raining for 10.6 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 149 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In October, the average length of the day in Florissant is 11h and 10min.
On the first day of the month, sunrise is at 6:57 am and sunset at 6:43 pm. On the last day of October, sunrise is at 7:28 am and sunset at 6:01 pm CDT.

Sunshine

The average sunshine in October is 6.2h.

UV index

In Florissant, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 3 in October transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

In Florissant, 65.7°F (18.7°C) is the average high-temperature and 49.5°F (9.7°C) is the average low-temperature during October. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is calculated to be 95°F (35°C).

What is the least humid month?

October is the least humid month, with an average relative humidity of 70%.

What is the average humidity in October?

In Florissant, the average relative humidity in October is 70%.

How many days does it rain in October?

In Florissant, in October, during 10.6 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

Does it snow in October?

In Florissant, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October?

In October, the average day length is 11h and 10min.

When are sunrise and sunset in October in Florissant?

On the first day of October, sunrise is at 6:57 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 6:01 pm CDT.

How many hours of sunshine does Florissant have in October?

The average sunshine duration in October is 6.2h.

What is the UV index reading in October?

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Florissant, MO

Average temperature in October - Florissant, MO
  • Average high temperature in October: 65.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in October: 49.5°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in October
Florissant, MO

Average pressure in October - Florissant, MO
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in October
Florissant, MO

Average wind speed in October - Florissant, MO
  • Average wind speed in October: 7.9mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

Average humidity in October
Florissant, MO

Average humidity in October - Florissant, MO
  • Average humidity in October: 70%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in October
Florissant, MO

Average rainfall in October - Florissant, MO
  • Average rainfall in October: 2.48"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in October
Florissant, MO

Average rainfall days in October - Florissant, MO
  • Average rainfall days in October: 10.6 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in October
Florissant, MO

Average snowfall in October - Florissant, MO
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Florissant, MO

Average snowfall days in October - Florissant, MO
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Florissant, MO

Average daylight in October / Average sunshine in October - Florissant, MO
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 6h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in October
Florissant, MO

Average sunshine days in October - Florissant, MO
  • Average sunshine days in October: 19 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).

Average UV index in October
Florissant, MO

Average UV index in October - Florissant, MO
  • Average UV index in October: 3

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Florissant, MO

Average cloud cover in October - Florissant, MO
  • Average cloud cover in October: 32

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in October
Florissant, MO

Average visibility in October - Florissant, MO
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Florissant, Missouri, USA

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